Fabricating Superior NiAl Bronze Components through Wire Arc Additive Manufacturing.
Fabricating Superior NiAl Bronze Components through Wire Arc Additive Manufacturing.
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DOI：
10.3390/ma9080652
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发表时间：
2016-08-03
期刊：
影响因子：
--
通讯作者：
Shen C
中科院分区：
文献类型：
--
作者：
Ding D;Pan Z;van Duin S;Li H;Shen C
铸造镍铝青铜（NAB）合金具有优异的力学性能和耐腐蚀性能，被广泛应用于船舶大型工程构件。然而，铸造孔隙率以及粗糙的显微组织伴随着铸造NAB部件的机械性能的降低。虽然热处理、搅拌摩擦加工和熔焊被用来消除气孔、改善机械性能和细化铸态金属的微观结构，但它们的应用仅限于表面改性或部件修复。而不是传统的铸造技术，这项研究的重点是开发NAB组件使用最近扩大的电弧增材制造（WAAM）。熔化自耗焊丝并将其逐层沉积在基材上，从而生产出近净形NAB部件。未经后处理的增材制造NAB部件是完全致密的，并且表现出精细的微观结构，以及与铸态NAB合金相当的机械性能。从焊接过程和焊后热处理（PWHT）的热输入的影响示出了均匀的NAB合金与上级机械性能揭示潜在的海洋应用WAAM技术在NAB生产。
Cast nickel aluminum bronze (NAB) alloy is widely used for large engineering components in marine applications due to its excellent mechanical properties and corrosion resistance. Casting porosity, as well as coarse microstructure, however, are accompanied by a decrease in mechanical properties of cast NAB components. Although heat treatment, friction stir processing, and fusion welding were implemented to eliminate porosity, improve mechanical properties, and refine the microstructure of as-cast metal, their applications are limited to either surface modification or component repair. Instead of traditional casting techniques, this study focuses on developing NAB components using recently expanded wire arc additive manufacturing (WAAM). Consumable welding wire is melted and deposited layer-by-layer on substrates producing near-net shaped NAB components. Additively-manufactured NAB components without post-processing are fully dense, and exhibit fine microstructure, as well as comparable mechanical properties, to as-cast NAB alloy. The effects of heat input from the welding process and post-weld-heat-treatment (PWHT) are shown to give uniform NAB alloys with superior mechanical properties revealing potential marine applications of the WAAM technique in NAB production.
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影响因子：
5.4
作者：
Mok, Sui Him;Bi, Guijun;Segal, Joel
通讯作者：
Segal, Joel
DOI：
10.1007/s11663-015-0509-5
发表时间：
2016-02-01
影响因子：
3
作者：
Shen, Chen;Pan, Zengxi;Li, Huijun
通讯作者：
Li, Huijun
DOI：
10.1007/s00170-011-3299-1
发表时间：
2011-11-01
影响因子：
3.4
作者：
Wang, Fude;Williams, Stewart;Rush, Matthew
通讯作者：
Rush, Matthew
DOI：
10.1007/bf02642870
发表时间：
1982-01-01
期刊：
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
影响因子：
--
作者：
HASAN, F;JAHANAFROOZ, A;RIDLEY, N
通讯作者：
RIDLEY, N
影响因子：
8.4
作者：
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通讯作者：
Leyens, Christoph